In 1979, a film was released based on the horrifying events that tormented the Schepp family in their Pennsylvania home. Forty years later, the estranged family returns to bury the past when an eccentric stranger appears, laying claim to the infamous house. A quarrel over inheritance turns deadly, and the Schepps soon find themselves faced with a new terror. Bonds are tested as demons of past and present descend from outside as well as within, each hellbent on concluding the family's final chapter.